Transition-metal doping induces the transition of electronic and magnetic properties in armchair MoS2 nanoribbons

Literature Information

Publication Date 2017-08-03
DOI 10.1039/C7CP03151C
Impact Factor 3.676
Authors

Jing Pan, Rui Wang, Xiaoyu Zhou, Jiansheng Zhong, Xiaoyong Xu, Jingguo Hu


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Abstract

The electronic structure, magnetic properties and stability of transition-metal (TM) doped armchair MoS2 nanoribbons (AMoS2NRs) with full hydrogen passivation have been investigated using density functional theory. The hydrogen passivated AMoS2NRs are non-magnetic semiconductors, but TM doping can make the AMoS2NRs display diverse characteristics (such as non-magnetic metal, magnetic semiconductor, non-magnetic semiconductor and semi-metal properties), in which a transition of the electronic and magnetic properties is observed. Electronic structure analysis shows that the magnetism of the TM-doped AMoS2NRs is concentrated on the TM dopant and the edge Mo atoms, which mainly comes from the competition between the exchange splitting and crystal-field splitting. More importantly, Mn-doped AMoS2NRs may be good candidates for spintronic devices due to their good ferromagnetism with long-range FM magnetic coupling, reliable Curie temperature and high stability. These interesting findings on AMoS2NRs may open the possibility of their application in nanodevices and spintronic devices based on low-dimensional nanostructures.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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